An object with a mass of 2kg moving with a velocity of 8m/s collides with a 3 kg object moving in the same direction at a velocity of 6m/s. What is the total initial momentum? * 19 kg-m/s
34 kg. m/s
54 kg. m/s
288 kg-m/s

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s

a 2,000 calorie based diet.

not too sure thinking all accelerations are pointed down